Probable component of the anaphase promoting complex/cyclosome (APC/C), a cell cycle-regulated E3 ubiquitin ligase that controls progression through mitosis and the G1 phase of the cell cycle (PubMed:11861581). The APC/C complex acts by mediating ubiquitination and subsequent degradation of target proteins (PubMed:11861581). Developmental role in early embryogenesis and the metaphase to anaphase transition in meiosis and mitosis (PubMed:11861581). In vitro, recruits the ubiquitin-conjugating enzyme ubc-2 to exert ubiquitin ligase activity (PubMed:15466891). Protein modification; protein ubiquitination. The APC/C complex is probably composed of at least 12 subunits: apc-2, apc-10, apc-11, cdc-26, emb-1, emb-27, emb-30, mat-1, mat-2, mat-3, such-1 and gfi-3 (Probable). Interacts with ubc-2 (PubMed:15466891). RNAi-mediated knockdown is embryonic lethal with the display of a meiotic metaphase-to-anaphase defective phenotype marked by arrest at meiosis I at the one-cell stage of embryogenesis. Belongs to the RING-box family.