Catalysis of the reaction: all-trans-retinol + NADP+ = all-trans-retinal + NADPH + H+
1. RHEA: 25033
2. EC 1.1.1.3003. KEGG REACTION: R08379
4. MetaCyc RXN-108415. Reactome: R-HSA-2464803 "RDH8 reduces atRAL to atROL"
6. Reactome: R-HSA-2464822 "RDH12 reduces atRAL to atROL"
7. Reactome: R-HSA-2465921 "11cRDH oxidises 11cROL to 11cRAL"
8. Reactome: R-HSA-2465940 "atRAL is reduced to atROL"
9. Reactome: R-HSA-2466861 "Defective RDH12 does not reduce atRAL to atROL and causes LCA13"
10. Reactome: R-HSA-2471670 "Defective RDH12 does not reduce atRAL to atROL"
11. Reactome: R-HSA-5419165 "RDH11,14,DHRS3,DRHS4 reduce atRAL to atROL"
12. Reactome: R-HSA-5615668 "AKR1C3 reduces atRAL to atROL"
13. Reactome: R-HSA-5623643 "RDH13 reduces atRAL to atROL"
14. Reactome: R-HSA-74872 "RDH10,11 oxidise 11cROL to 11cRAL"