This gene encodes a member of the AAA (ATPases associated with diverse cellular activities) family of ATPases.This member is a predominantly cytoplasmic protein, which plays a direct role in peroxisomal protein import and is required for PTS1 (peroxisomal targeting signal 1, a C-terminal tripeptide of the sequence ser-lys-leu) receptor activity.Mutations in this gene cause peroxisome biogenesis disorders of complementation group 4 and complementation group 6.[provided by RefSeq]