Immunogen sequence: FAALDDPLAG LLDMLESCRG QRGEGPSLAA WISHQLQCWL QAQPCPSLAQ HSLRLKQLQA RVVKVLTESP PSLAAPLASI FQLQDADRSC LLAHVHR Highest antigen sequence identity to the following orthologs: Mouse - 24%, Rat - 24%. Possesses 3'-5' exoribonuclease activity.