Gamma-aminobutyric acid receptor-associated protein-like 1 (GABARAPL1)

Ubiquitin-like modifier that increases cell-surface expression of kappa-type opioid receptor via facilitating anterograde intracellular trafficking of the receptor. Involved in creation of autophagosomal vacuoles.

Whereas LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is vital for a later period in autophagosome maturation. .