Predicted to enable methylated histone binding activity. Involved in canonical Wnt signaling pathway. Acts upstream of or within several processes, including hematopoietic progenitor cell differentiation; protein localization to nucleus; and spermatid nucleus differentiation. Located in nucleus. Is expressed in several structures, including central nervous system; heart; male reproductive system; pancreas; and urinary system. Orthologous to human PYGO1 (pygopus family PHD finger 1). [provided by Alliance of Genome Resources, Apr 2022]