The ERF2-SHR5 complex is a palmitoyltransferase specific for Ras proteins (PubMed:12193598, PubMed:12379641, PubMed:7532279). Palmitoylates RAS2, which is required for its proper plasma membrane localization (PubMed:12193598, PubMed:12379641, PubMed:7532279). Interacts with ERF2. Present with 937 molecules/cell in log phase SD medium. Belongs to the ERF4 family.