Predicted to be involved in regulation of postsynaptic neurotransmitter receptor activity. Predicted to act upstream of or within evoked excitatory postsynaptic potential. Located in several cellular components, including dendrite; neuronal cell body; and synapse. Is active in glutamatergic synapse and postsynapse. Orthologous to human BEGAIN (brain enriched guanylate kinase associated). [provided by Alliance of Genome Resources, Apr 2022]