Enables protein domain specific binding activity. Involved in epithelial to mesenchymal transition. Acts upstream of or within several processes, including chordate embryonic development; embryonic foregut morphogenesis; and mesoderm morphogenesis. Located in focal adhesion and ruffle membrane. Is expressed in several structures, including foregut; lung; metanephros; neural tube; and primitive streak. Orthologous to human EPB41L5 (erythrocyte membrane protein band 4.1 like 5). [provided by Alliance of Genome Resources, Apr 2022]