Enables the transfer of retinol from one side of a membrane to the other. Retinol is vitamin A1, 2,6,6-trimethyl-1-(9'-hydroxy-3',7'-dimethylnona-1',3',5',7'-tetraenyl)cyclohex-1-ene, one of the three components that makes up vitamin A.
Synonyms:
exact_synonym:
vitamin A1 transporter activity
related_synonym:
retinol transporter activity
xref:
Reactome:R-HSA-1467466 "ABCA4 mediates atRAL transport"; Reactome:R-HSA-2466749 "ABCA4 transports NRPE from photoreceptor outer segment membrane to cytosol"; Reactome:R-HSA-2466802 "Defective ABCA4 does not transport NRPE from disc membranes"