Àwọn enzyme tí ó ń kóòdù fún gene yìí maa ń lo retinal gẹ́gẹ́ bí ohun ìbẹ̀rẹ̀, yálà lọ́fẹ́ tàbí retinal tí ó tòrò mọ́ protein nínú sẹ́ẹ̀lì.Awon ìtọ́kasíiwe àkàsíwájú síi àyọkà kukuru.. 