Enables identical protein binding activity. Predicted to be involved in several processes, including positive regulation of cellular extravasation; regulation of vascular permeability; and tumor necrosis factor-mediated signaling pathway. Located in caveola. Is integral component of membrane. Human ortholog(s) of this gene implicated in congenital diarrhea. Orthologous to human PLVAP (plasmalemma vesicle associated protein). [provided by Alliance of Genome Resources, Apr 2022]