RBP3 (Retinol-binding protein 3 = Interphotoreceptor retinoid-binding protein = Interstitial retinol-binding protein), an eye protein commonly used as a phylogenetic marker.
"The names of all these molecules have recently been changed ... vitamin A is now retinol, retinene is retinal; there is also retinoic acid"—George Wald (1967).
STRA6 is the receptor for retinol binding protein and is relevant for the transport of retinol to specific sites such as the eye (Vitamin A).