Peroxisome membrane protein that is an essential component of the peroxisomal import machinery. Functions as a docking factor for the predominantly cytoplasmic PTS1 receptor (PEX5). Plays a key role for peroxisome movement through a direct interaction with tubulin. Interacts with PEX5, PEX13 and PEX19. Interacts with tubulin. Belongs to the peroxin-14 family.