Is an ortholog of human FZD4 (frizzled class receptor 4). Is predicted to have Wnt-protein binding activity. Is involved in generation of neurons\; mitochondrial unfolded protein response\; and neuroblast migration. Is expressed in the head\; the muscular system\; and the nervous system. Human ortholog(s) of this gene are implicated in exudative vitreoretinopathy and retinopathy of prematurity.