ATEXO70A3 (exocyst subunit EXO70 family protein A3); protein binding. similar to ATEXO70A2 (exocyst subunit EXO70 family protein A2), protein binding [Arabidopsis thaliana] (TAIR:AT5G52340.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO15825.1); contains InterPro domain Exo70 exocyst complex subunit; (InterPro:IPR004140)