In complex with MON1, is required for multiple vacuole delivery pathways including the cytoplasm to vacuole transport (Cvt), autophagy, pexophagy and endocytosis. The CCZ1-MON1 complex acts at the fusion of vesicles with the vacuole, through its regulation of the SNARE complex during the coordinated priming and docking stages of fusion, and particularly at the stage of tethering/docking (PubMed:10407278, PubMed:11069774, PubMed:11590240, PubMed:12208507, PubMed:12364329, PubMed:14662743, PubMed:15184059, PubMed:15721293). The CCZ1-MON1 complex acts as a guanine nucleotide-exchange factor (GEF) for Rab-type GTPase YPT7, promoting nucleotide exchange on YPT7 and triggering endosomal maturation by activating YPT7 on late endosomes (PubMed:20797862). Forms a complex with MON1. Interacts with YPT7. The association of the CCZ1-MON1 complex with the vacuole is regulated by the C-Vps/HOPS complex. Present with 2870 molecules/cell in log phase SD medium. Belongs to the CCZ1 family.