Predicted to enable chromatin binding activity; methylated histone binding activity; and single-stranded RNA binding activity. Involved in developmental process involved in reproduction; positive regulation of transcription elongation from RNA polymerase II promoter; and response to xenobiotic stimulus. Located in nucleus. Human ortholog(s) of this gene implicated in breast cancer; multiple myeloma; and myeloid leukemia. Orthologous to human CBX7 (chromobox 7). [provided by Alliance of Genome Resources, Apr 2022]