Involved in regulation of postsynaptic membrane potential. Acts upstream of or within G protein-coupled receptor signaling pathway. Located in several cellular components, including glutamatergic synapse; postsynapse; and presynapse. Is anchored component of postsynaptic density membrane and anchored component of presynaptic membrane. Is expressed in trigeminal ganglion. Orthologous to human RGS7BP (regulator of G protein signaling 7 binding protein). [provided by Alliance of Genome Resources, Apr 2022]