Involved in cytokinesis (Probable). May be involved in p53-dependent apoptosis (PubMed:17456438). Likely part of a multicomponent septin complex that includes pnut (PubMed:8590810). Interacts with pnut (PubMed:8590810). Interacts with park (PubMed:17456438). Accumulates at the leading edge of the cleavage furrow in dividing cells and cellularizing embryos (at protein level) (PubMed:8590810). Also accumulates at the leading edge of the embryo epithelium during dorsal closure, in the embryonic neurons, and at the baso-lateral surfaces of ovarian follicle cells (at protein level) (PubMed:8590810). Ubiquitinated by park, leading to its degradation by the proteasome. Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. Septin GTPase family.