ESCRT-III-like protein required to recruit the ESCRT-III complex to the nuclear envelope during late anaphase. Together with SPAST, the ESCRT-III complex promotes nuclear envelope sealing and mitotic spindle disassembly during late anaphase. Plays a role in the endosomal sorting pathway. Diffused localization, with some punctate distribution, especially in the perinuclear area. Localizes to the nucleus envelope during late anaphase. Belongs to the SNF7 family.