Enables the energy-independent facilitated diffusion of glycerol through a transmembrane aqueous pore or channel.
Synonyms:
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MetaCyc:TRANS-RXN-131; reactome:R-HSA-432049 "Aquaporin-9 passively transports glycerol into cell"; reactome:R-HSA-432074 "Aquaporin-7 passively transports glycerol out of cell"; reactome:R-HSA-507869 "Aquaporins passively transport glycerol into cells"; reactome:R-HSA-507871 "Aquaporins passively transport glycerol out of cells"