Enables actin binding activity; dynein complex binding activity; and tubulin binding activity. Involved in regulation of phosphatase activity. Located in centrosome and manchette. Is expressed in 4th ventricle lateral recess and lateral ventricle choroid plexus. Orthologous to human PPP1R42 (protein phosphatase 1 regulatory subunit 42). [provided by Alliance of Genome Resources, Apr 2022]