This entry represents a protein that is predominantly found just upstream of the UraD protein (OHCU decarboxylase) and in a number of instances as a N-terminal fusion with it. UraD itself catalyses the last step in the catabolism of urate to allantoate [1]. The function of this protein is presently unknown. It shows homology with the IPR002509 polysaccharide deacetylase domain family.