Predicted to enable metal ion binding activity. Acts upstream of or within female sex determination. Predicted to be located in several cellular components, including cilium; mitochondrial envelope; and rough endoplasmic reticulum. Predicted to be active in Golgi apparatus and extracellular space. Is expressed in caudal fin skeleton; eye; and postcranial axial skeleton. Human ortholog(s) of this gene implicated in juvenile glaucoma; low tension glaucoma; ocular hypertension; open-angle glaucoma; and primary open angle glaucoma. Orthologous to human MYOC (myocilin).