sinapoyl spermidine:sinapoyl CoA N-acyltransferase activity
Catalysis of the transfer of a sinapoyl group to a nitrogen atom on a sinapoyl spermidine molecule resulting in the formation of a disinapoyl spermidine derivative.
GO:0016747
acyltransferase activity, transferring groups other than amino-acyl groups
is_a