This family contains a wide variety of enzymes, principally thioesterases. These enzymes are part of the Hotdog fold superfamily [1]. This domain represents the C-terminal domain in a pair of HotDog domains, usually found with Pfam:PF13622.

1: The Hotdog fold: wrapping up a superfamily of thioesterases and dehydratases. Dillon SC, Bateman A; BMC Bioinformatics 2004;5:109-109. PMID:15307895