tetraketide alpha-pyrone synthase activity
Catalyzes the reaction: 7-hydroxylauroyl-CoA + 3 malonyl-CoA + 2 H+ = 2-(8-hydroxy-2-oxotridecyl)-6-oxopyran-4-olate + 3 CO2 + 4 coenzyme A.
GO:0016747
acyltransferase activity, transferring groups other than amino-acyl groups
is_a