Predicted to enable several functions, including enzyme binding activity; protein C-terminus binding activity; and transmembrane transporter binding activity. Involved in modulation of chemical synaptic transmission. Acts upstream of or within actin filament organization and calcium-mediated signaling. Located in cortical actin cytoskeleton; dendritic spine; and filopodium. Is expressed in several structures, including brain; extraembryonic component; genitourinary system; hemolymphoid system gland; and skeletal muscle. Orthologous to human PPP1R9A (protein phosphatase 1 regulatory subunit 9A). [provided by Alliance of Genome Resources, Apr 2022]