obsolete 5-pentadecatrienylresorcinol synthase activity (obsolete GO:0102989)
OBSOLETE. Catalysis of the reaction: 3 H+ + 9,12,15-cis-hexadecatrienoyl-CoA + 3 malonyl-CoA(5-) = 5-(pentadeca-8,11,14-trien-1-yl)resorcinol + 4 coenzyme A + 4 carbon dioxide.