Exhibits histone deacetylase (HDAC) enhancer properties (PubMed:23460338). May play a role in cell cycle progression and wound repair of bronchial epithelial cells (PubMed:21857995). Homodimer (PubMed:23460338). Interacts with BRS3 (PubMed:21857995). Interacts (via N-terminus) with SIN3B (PubMed:23460338). Retained in nucleolar organiser regions (NORs) in mitotic cells (PubMed:23460338). Glycosylated. Named amfion, after 'the 4 Amfion heroes in Greek mythology and their deeds in different locations within the mother land. Extended N-terminus. Extended N-terminus.