Enables integrin binding activity. Predicted to be involved in cell migration. Predicted to act upstream of or within several processes, including T cell proliferation; positive regulation of endocytosis; and wound healing, spreading of cells. Predicted to be located in basement membrane and cell surface. Predicted to be integral component of plasma membrane. Orthologous to human CD151 (CD151 molecule (Raph blood group)). [provided by Alliance of Genome Resources, Apr 2022]