Involved in negative regulation of cell-matrix adhesion; positive regulation of cell migration; and wound healing, spreading of epidermal cells. Located in apical plasma membrane and external side of plasma membrane. Is expressed in several structures, including embryo endoderm; extraembryonic component; genitourinary system; gut; and lung. Orthologous to human PLET1 (placenta expressed transcript 1). [provided by Alliance of Genome Resources, Apr 2022]