Enables calmodulin binding activity; phosphatidic acid binding activity; and phosphatidylinositol-3,4,5-trisphosphate binding activity. Involved in associative learning; modulation of chemical synaptic transmission; and telencephalon development. Located in several cellular components, including dendritic spine head; postsynaptic density; and trans-Golgi network transport vesicle membrane. Is active in glutamatergic synapse and postsynaptic membrane. Biomarker of hypothyroidism and visual epilepsy. Orthologous to human NRGN (neurogranin). [provided by Alliance of Genome Resources, Apr 2022]