diff --git a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/extension/multi/BioEntityFeature.java b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/extension/multi/BioEntityFeature.java
index a1b95b4d590f5383aa932011f5bc029aa5f83b11..42425defdf7854a1bccfa4bc11cac49919081ca5 100644
--- a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/extension/multi/BioEntityFeature.java
+++ b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/extension/multi/BioEntityFeature.java
@@ -26,6 +26,9 @@ public enum BioEntityFeature {
   HYPOTHETICAL("Hypothetical", null, new Class<?>[] { Element.class },
       "minerva_hypothetical_"),
 
+  ACTIVITY("Activity", null, new Class<?>[] { Element.class },
+      "minerva_activity_"),
+
   DIMER("Dimer", null, new Class<?>[] { Element.class },
       "minerva_dimer_"),
 
diff --git a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesExporter.java b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesExporter.java
index cb70338973c87e8f70af120bdddb1e66047d6247..6215374c9d25eda9f77427651d89d826e9254b74 100644
--- a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesExporter.java
+++ b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesExporter.java
@@ -109,6 +109,7 @@ public class SbmlSpeciesExporter extends SbmlElementExporter<Species, org.sbml.j
     assignHypotheticalToMulti(element, multiExtension, speciesType);
     assignAbbreviationToMulti(element, multiExtension, speciesType);
     assignChargeToMulti(element, multiExtension, speciesType);
+    assignActivityToMulti(element, multiExtension, speciesType);
   }
 
   private void assignElementModificationResiduesToMulti(Species element, MultiSpeciesPlugin multiExtension,
@@ -323,6 +324,14 @@ public class SbmlSpeciesExporter extends SbmlElementExporter<Species, org.sbml.j
     }
   }
 
+  private void assignActivityToMulti(Species element, MultiSpeciesPlugin multiExtension,
+      MultiSpeciesType speciesType) {
+    if (element.getActivity() != null) {
+      assignValueToFeature(element, multiExtension, speciesType, element.getActivity().toString(),
+          BioEntityFeature.ACTIVITY);
+    }
+  }
+
   private void assignAbbreviationToMulti(Species element, MultiSpeciesPlugin multiExtension,
       MultiSpeciesType speciesType) {
     assignValueToFeature(element, multiExtension, speciesType, element.getAbbreviation(),
diff --git a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesParser.java b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesParser.java
index 468348e3449f59a2abadc727a2f51b1a3c9125e1..d458857d6ded909aad2a5f33ef5bba640c715337 100644
--- a/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesParser.java
+++ b/converter-sbml/src/main/java/lcsb/mapviewer/converter/model/sbml/species/SbmlSpeciesParser.java
@@ -209,6 +209,20 @@ public class SbmlSpeciesParser extends SbmlElementParser<org.sbml.jsbml.Species>
         }
         minervaElement.setHypothetical(value);
       }
+    } else if (MultiPackageNamingUtils.isFeatureId(featureTypeString, BioEntityFeature.ACTIVITY)) {
+      if (featureValues.size() != 1) {
+        logger.warn(warnPrefix + "Activity must have exactly one value");
+      } else {
+        Boolean value = null;
+        if (featureValues.get(0).equalsIgnoreCase("true")) {
+          value = true;
+        } else if (featureValues.get(0).equalsIgnoreCase("false")) {
+          value = false;
+        } else {
+          logger.warn(warnPrefix + "Activity must be true/false value. Found: " + featureValues.get(0));
+        }
+        minervaElement.setActivity(value);
+      }
     } else if (MultiPackageNamingUtils.isModificationFeatureId(featureTypeString)) {
       createModificationResidues(minervaElement, speciesType, feature);
     } else {
diff --git a/converter-sbml/src/test/java/lcsb/mapviewer/converter/model/sbml/ElementPropertiesExportToMultiTest.java b/converter-sbml/src/test/java/lcsb/mapviewer/converter/model/sbml/ElementPropertiesExportToMultiTest.java
index ea0af3d65868a97db0efed823455993d2aab034b..d9bdefc23859caf5831f4395d488406d30efb9d2 100644
--- a/converter-sbml/src/test/java/lcsb/mapviewer/converter/model/sbml/ElementPropertiesExportToMultiTest.java
+++ b/converter-sbml/src/test/java/lcsb/mapviewer/converter/model/sbml/ElementPropertiesExportToMultiTest.java
@@ -68,6 +68,10 @@ public class ElementPropertiesExportToMultiTest {
     element.setHypothetical(true);
     data.add(createTestEntry("Hypothetical", element));
 
+    element = createElement();
+    element.setActivity(true);
+    data.add(createTestEntry("Activity", element));
+
     element = createElement();
     element.setSymbol("H2O");
     data.add(createTestEntry("Symbol", element));