Predicted to enable integrin binding activity. Acts upstream of or within T cell migration. Predicted to be located in membrane. Predicted to be integral component of membrane. Predicted to be part of integrin alpha4-beta7 complex. Predicted to be active in cell surface and focal adhesion. Is expressed in genitourinary system and thymus primordium. Orthologous to human ITGB7 (integrin subunit beta 7). [provided by Alliance of Genome Resources, Apr 2022]