Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and methyl-CpG binding activity. Acts upstream of or within epithelial cell maturation involved in prostate gland development; prostate epithelial cord arborization involved in prostate glandular acinus morphogenesis; and regulation of growth. Part of transcription regulator complex. Is expressed in several structures, including genitourinary system; gut; lung; spinal cord; and tail. Human ortholog(s) of this gene implicated in ductal carcinoma in situ and renal cell carcinoma. Orthologous to human HOXB13 (homeobox B13). [provided by Alliance of Genome Resources, Apr 2022]