Predicted to enable channel activity; identical protein binding activity; and urea transmembrane transporter activity. Involved in glycerol transport and water transport. Acts upstream of or within cellular response to oxygen-glucose deprivation; renal water absorption; and urea transport. Located in basolateral plasma membrane and cell-cell junction. Is expressed in several structures, including alimentary system; early conceptus; genitourinary system; lateral plate mesoderm; and thymus. Used to study nephrogenic diabetes insipidus. Orthologous to human AQP3 (aquaporin 3 (Gill blood group)). [provided by Alliance of Genome Resources, Apr 2022]