Required for the transport of peptidoglycolipids (GPLs) to the cell surface. Deletion mutant synthesizes GPL at a level similar to the wild-type strain, but is unable to transport it to the cell surface. GPLs are retained within the cytoplasmic compartment. Mutant is not able to slide. Belongs to the peptidoglycolipid addressing protein (GAP) (TC 2.A.116) family.