Component of the exocyst complex involved in the docking of exocytic vesicles with fusion sites on the plasma membrane. The exocyst complex is composed of EXOC1, EXOC2, EXOC3, EXOC4, EXOC5, EXOC6, EXOC7 and EXOC8 (PubMed:9405631, PubMed:12954101). Interacts (via PH domain) with GTP-bound RALA and RALB (By similarity) (PubMed:15920473). Interacts with SH3BP1; required for the localization of both SH3BP1 and the exocyst to the leading edge of migrating cells (By similarity). Binds lipids with phosphatidylinositol 3,4,5-trisphosphate groups (By similarity). Perinuclear in undifferentiated PC12 cells. Redistributes to growing neurites and growth cones during NGF-induced neuronal differentiation (PubMed:12954101). Localizes at the leading edge of migrating cells (PubMed:21658605). Belongs to the EXO84 family.