Enables chromatin binding activity. Involved in positive regulation of cold-induced thermogenesis. Acts upstream of or within several processes, including brown fat cell differentiation; defense response to bacterium; and response to cold. Predicted to be located in nucleus. Is expressed in several structures, including extraembryonic component; gut; liver lobe; oculomotor nerve; and prostate gland lobe. Orthologous to human PLAC8 (placenta associated 8). [provided by Alliance of Genome Resources, Apr 2022]