part of part of in taxon has primary input bilirubin(2-) dicarboxylic acid transmembrane transporter activity bilirubin transmembrane transporter activity Reactome:R-HSA-9661417 molecular_function Reactome:R-HSA-5679031 Enables the transfer of bilirubin from one side of a membrane to the other. Bilirubin is a linear tetrapyrrole produced in the reticuloendothelial system from biliverdin and transported to the liver as a complex with serum albumin. In the liver, bilirubin is converted to bilirubin bisglucuronide, which is excreted in the bile. GO:0015127 Reactome:R-HSA-5679041 bilirubin transport transmembrane transporter activity Fungi