Component of the biogenesis of lysosome-related organelles complex-1 (BLOC-1), a complex involved in endosomal cargo sorting. Component of the biogenesis of lysosome-related organelles complex-1 (BLOC-1) composed of at least BLI1, BLS1, CNL1, KXD1, SNN1 and VAB2. Present with 468 molecules/cell in log phase SD medium. Belongs to the BLOC1S1 family.