Enables glycerol transmembrane transporter activity and water channel activity. Involved in several processes, including glycerol transport; lateral ventricle development; and positive regulation of lamellipodium assembly. Located in several cellular components, including basolateral plasma membrane; brush border; and neuronal cell body membrane. Biomarker of artery disease (multiple); autosomal recessive polycystic kidney disease; brain disease (multiple); diabetes mellitus; and uveitis. Orthologous to human AQP1 (aquaporin 1 (Colton blood group)). [provided by Alliance of Genome Resources, Apr 2022]