Enables chromatin binding activity and transcription coregulator activity. Involved in positive regulation of cold-induced thermogenesis. Acts upstream of or within several processes, including cellular response to leukemia inhibitory factor; histone modification; and spermatid nucleus elongation. Located in cytoplasm and nucleus. Is expressed in pituitary gland. Used to study obesity. Human ortholog(s) of this gene implicated in cervical cancer and colon cancer. Orthologous to human KDM3A (lysine demethylase 3A). [provided by Alliance of Genome Resources, Apr 2022]