A minor apolipoprotein that associates with HIGH-DENSITY LIPOPROTEINS (HDL), VERY-LOW-DENSITY LIPOPROTEINS (VLDL), and CHYLOMICRONS. It regulates levels of plasma TRIGLYCERIDES by activating APOLIPOPROTEIN C-II LIPOPROTEIN LIPASE and inhibiting hepatic VLDL triglyceride hydrolysis.

Synonyms: Apo A-V Protein, 0, Apolipoprotein A-V, ApoA V Protein, Apo A5 Protein, Apolipoprotein A5, Apo A V Protein, APOA5 Protein, ApoA-V Protein, Apolipoprotein A V