Integral ER membrane protein that stimulates Sar1p GTPase activity; involved in COPII vesicle budding through disassociation of coat proteins from membranes onto liposomes; binds Sec16p; SED4 has a paralog, SEC12, that arose from the whole genome duplication [Source:SGD;Acc:S000000663]

Chromosome III: 233,125-236,322 reverse strand.

R64-1-1:BK006937.2

This gene has 1 transcript (splice variant), 128 orthologues and 2 paralogues.

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