The protein encoded by BNC1 is a zinc finger protein present in the basal cell layer of the epidermis and in hair follicles. It is also found in abundance in the germ cells of testis and ovary. This protein is thought to play a regulatory role in keratinocyte proliferation and it may also be a regulator for rRNA transcription. Alternative splicing of BNC1 results in multiple transcript variants, and multiple polyadenylation sites are indicated.