Immunogen sequence: CSREMEVSYFA AGIIAHLTSD RQLWISRDFQ RRTLLQDLHA TIQNWPSSSC KMTALVTYRS FKTFFPLLGN FSQPEVQLWA L Highest antigen sequence identity to the following orthologs - mouse 68%, rat 72%. Probably acts as target recruitment subunit in an E3 ubiquit