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 (By similarity). Interacts with EXOC3L1 (PubMed:18480549). Interacts with BIRC6/bruce (By similarity). Interacts with MYRIP (PubMed:17827149). Interacts with SLC6A9 (By similarity). Perinuclear in undifferentiated cells. Redistributes to growing neurites and growth cones during neuronal differentiation (By similarity). During mitosis, early recruitment to the midbody requires RALA, but not RALB, and EXOC2. In late stages of cytokinesis, localization to the midbody is RALB-dependent (By similarity). Belongs to the SEC6 family. It is uncertain whether Met-1 or Met-11 is the initiator. Extended N-terminus.