Enables interleukin-13 receptor binding activity. Involved in several processes, including positive regulation of cell population proliferation; positive regulation of macromolecule metabolic process; and regulation of cation transmembrane transport. Located in extracellular space. Used to study asthma; extrinsic allergic alveolitis; and lipoid nephrosis. Biomarker of several diseases, including alcoholic hepatitis; middle cerebral artery infarction; peptic esophagitis; prostatic hypertrophy; and pulmonary fibrosis. Human ortholog(s) of this gene implicated in several diseases, including allergic disease (multiple); autoimmune disease (multiple); diffuse scleroderma; lung disease (multiple); and nose disease (multiple). Orthologous to human IL13 (interleukin 13). [provided by Alliance of Genome Resources, Apr 2022]