Predicted to enable protein phosphatase regulator activity. Acts upstream of or within blastocyst hatching. Predicted to be located in cytoplasm. Predicted to be part of protein serine/threonine phosphatase complex. Predicted to be active in cytosol. Is expressed in early conceptus; secondary oocyte; and telencephalon mantle layer. Orthologous to human PPP4R4 (protein phosphatase 4 regulatory subunit 4). [provided by Alliance of Genome Resources, Apr 2022]