Predicted to enable potassium channel regulator activity; protein phosphatase inhibitor activity; and signaling receptor binding activity. Predicted to be involved in G2/M transition of mitotic cell cycle; negative regulation of protein dephosphorylation; and positive regulation of gluconeogenesis. Predicted to act upstream of or within cell division. Predicted to be active in cytoplasm. Is expressed in secondary oocyte. Orthologous to human ARPP19 (cAMP regulated phosphoprotein 19). [provided by Alliance of Genome Resources, Apr 2022]