Binds PPP1CA and actin. Expressed in the brain with high levels in the cerebellum, specifically in the Purkinje cell layer, choroid plexus and thalamus (ventral, rhomboid and anterior nuclei). Moderate to high expression in the hippocampus, piriform cortex, olfactory bulb, entorhinal cortex, as well as in geniculate bodies, lamboid septal zone, preoptic area and ventral pallidum (at protein level). Belongs to the phosphatase and actin regulator family.