Is an ortholog of human ZFHX3 (zinc finger homeobox 3). Is predicted to have RNA polymerase II proximal promoter sequence-specific DNA binding activity. Is expressed in the anal depressor muscle\; the anal sphincter muscle\; the body wall musculature\; the nerve ring\; and the vulval muscle. Human ortholog(s) of this gene are implicated in congenital ptosis and prostate cancer.