Enables protein phosphatase binding activity. Involved in several processes, including proteasome-mediated ubiquitin-dependent protein catabolic process; regulation of germ cell proliferation; and sex determination. Located in protein-containing complex. Part of Cul2-RING ubiquitin ligase complex. Expressed in several structures, including germ line. Is an ortholog of human FEM1A (
fem-1 homolog A) and FEM1C (
fem-1 homolog C).