Enables actin binding activity. Involved in regulation of actin filament polymerization. Predicted to be located in postsynapse and terminal bouton. Predicted to be active in several cellular components, including Schaffer collateral - CA1 synapse; glutamatergic synapse; and presynapse. Orthologous to human PFN2 (profilin 2). [provided by Alliance of Genome Resources, Apr 2022]