Enables lipase binding activity; lipoprotein particle binding activity; and protein transporter activity. Involved in several processes, including lipid homeostasis; positive regulation of chylomicron remnant clearance; and protein transport. Acts upstream of or within lipid transport. Located in apical plasma membrane; basolateral plasma membrane; and external side of plasma membrane. Is anchored component of plasma membrane. Human ortholog(s) of this gene implicated in familial GPIHBP1 deficiency. Orthologous to human GPIHBP1 (glycosylphosphatidylinositol anchored high density lipoprotein binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]