Predicted to enable protein phosphatase activator activity. Predicted to be involved in DNA damage response and regulation of double-strand break repair. Predicted to act upstream of or within positive regulation of gluconeogenesis. Predicted to be located in centrosome; cytoplasm; and nuclear speck. Predicted to be part of chromatin and protein phosphatase 4 complex. Predicted to be active in nucleoplasm. Orthologous to human PPP4R3B (protein phosphatase 4 regulatory subunit 3B); INTERACTS WITH 2,3,7,8-tetrachlorodibenzodioxine; 6-propyl-2-thiouracil; amitrole.