Predicted to enable DNA binding activity and catalytic activity. Predicted to act upstream of or within DNA repair. Is expressed in retina and trunk. Human ortholog(s) of this gene implicated in colorectal carcinoma; esophagus squamous cell carcinoma; lung cancer; rheumatoid arthritis; and uveal melanoma. Orthologous to human MBD4 (methyl-CpG binding domain 4, DNA glycosylase).