The function of Ensembl gene identifier ENSG00000134438 (RAX, retina and anterior neural fold homeobox) is as follows. Plays a critical role in eye formation by regulating the initial specification of retinal cells and/or their subsequent proliferation. Binds to the photoreceptor conserved element-I (PCE- 1/Ret 1) in the photoreceptor cell-specific arrestin promoter.