function:Guanine-nucleotide-releasing protein that acts on members of the SCE4/YPT1/RAB subfamily. Stimulates GDP release from both YPT1 and RAB3A, but is less active on these proteins than on the SEC4 protein. Might play a general role in vesicular transport.,similarity:Belongs to the DSS4/MSS4 family.,tissue specificity:Ubiquitous.,
intracellular,cytosol,membrane,
Ubiquitous.
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