Together with the Apc2 subunit, forms the catalytic core of the E3 ubiquitin ligase, anaphase-promoting complex-cyclosome. It has a RING H2 domain which interacts with the cullin domain of Apc2. Apc11 also interacts with the E2 ubiquitin ligases involved in APC-C ubiquitination reactions.

Synonyms: EC 2.3.2.27, Apc11 Subunit, Anaphase Promoting Complex Cyclosome, Anapc11, Apc11 Subunit, Anaphase Promoting Complex, Apc11 Subunit, Anaphase-Promoting Complex-Cyclosome, Apc11 Subunit, Anaphase-Promoting Complex