Predicted to enable channel regulator activity and voltage-gated calcium channel activity. Involved in regulation of AMPA receptor activity. Located in postsynaptic density. Part of AMPA glutamate receptor complex. Is active in glutamatergic synapse. Is integral component of postsynaptic membrane. Orthologous to human CACNG5 (calcium voltage-gated channel auxiliary subunit gamma 5). [provided by Alliance of Genome Resources, Apr 2022]