RAB GTPase activator. similar to RAB GTPase activator [Arabidopsis thaliana] (TAIR:AT4G27100.2); similar to RAB GTPase activator [Arabidopsis thaliana] (TAIR:AT4G27100.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO39011.1); contains InterPro domain RabGAP/TBC; (InterPro:IPR000195)