Constitutes the major component of lipophorin, which mediates transport for various types of lipids in hemolymph. Acts by forming lipoprotein particles that bind lipoproteins and lipids. May be required for morphogens wingless (wg) and hedgehog (hh) function, possibly by acting as vehicles for the movement of wg and hh (By similarity). Present in brain, hemolymph, fat body and eyes. Cleaved into 2 chains by furin protease. However, prevention of cleavage does not impair its function. N-glycosylated. Lipid freight - Issue 59 of June 2005