Is predicted to encode a protein with the following domains: Adenosylhomocysteinase-like superfamily; S-adenosyl-L-homocysteine hydrolase, NAD binding domain; S-adenosyl-L-homocysteine hydrolase; Adenosylhomocysteinase-like; and NAD(P)-binding domain superfamily. Is an ortholog of C. elegans ahcy-1.