Predicted to enable phosphatidylinositol-4,5-bisphosphate binding activity. Involved in postsynaptic actin cytoskeleton organization. Is active in glutamatergic synapse and postsynaptic density. Human ortholog(s) of this gene implicated in non-syndromic X-linked intellectual disability 104. Orthologous to human FRMPD4 (FERM and PDZ domain containing 4). [provided by Alliance of Genome Resources, Apr 2022]