Enables methylated histone binding activity. Involved in meiosis I; positive regulation of DNA metabolic process; and spermatogenesis. Acts upstream of or within homologous chromosome pairing at meiosis. Located in XY body and nucleus. Is expressed in brain; lung; reproductive system; and thymus. Orthologous to human ZCWPW1 (zinc finger CW-type and PWWP domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]