Predicted to enable protein phosphatase 2A binding activity; protein phosphatase regulator activity; and tau protein binding activity. Acts upstream of or within response to morphine. Located in synapse. Is active in glutamatergic synapse. Is expressed in eye. Orthologous to human PPP2R2A (protein phosphatase 2 regulatory subunit Balpha). [provided by Alliance of Genome Resources, Apr 2022]