This domain is found in Rhamnogalacturonan lyase from Bacteroides thetaiotaomicron (Swiss:Q8AAW3) and other bacterial proteins. It shows an alpha/beta structure [1] and locates C-terminal to Pfam:PF07944. The specific function of this domain is still unknown.

1: Dietary pectic glycans are degraded by coordinated enzyme pathways in human colonic Bacteroides. Luis AS, Briggs J, Zhang X, Farnell B, Ndeh D, Labourel A, Basle A, Cartmell A, Terrapon N, Stott K, Lowe EC, McLean R, Shearer K, Schuckel J, Venditto I, Ralet MC, Henrissat B, Martens EC, Mosimann SC, Abbott DW, Gilbert HJ; Nat Microbiol. 2018;3:210-219. PMID:29255254