Proteins of bacteria and fungi or uncategorised eukaryotes but not in animals or plants. The only sequence of viridi planta (Ricinus communis) might result from an horizontal transfer or a contamination. Although proteins in this family are uncharacterised they are likely to have an enzymatic activity. In mycpa-q73tu8 Mycobacterium paratuberculosis the catalytic triad would be Ser191, Asp259, His 289. The name of this family comes from Pfam but should not be confounded with family ABHD10 which is quite far related