Predicted to act upstream of or within eye photoreceptor cell development; retina development in camera-type eye; and visual perception. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Human ortholog(s) of this gene implicated in isolated microphthalmia 5; microphthalmia; nanophthalmos; and retinitis pigmentosa. Orthologous to human MFRP (membrane frizzled-related protein). [provided by Alliance of Genome Resources, Apr 2022]