The function of Ensembl gene identifier ENSG00000131724 (IL13RA1, interleukin 13 receptor subunit alpha 1) is as follows. Binds with low affinity to interleukin-13 (IL13). Together with IL4RA can form a functional receptor for IL13. Also serves as an alternate accessory protein to the common cytokine receptor gamma chain for interleukin-4 (IL4) signaling, but cannot replace the function of IL2RG in allowing enhanced interleukin-2 (IL2) binding activity.