Attaches a phycocyanobilin (PCB) chromophore to 'Cys-153' of the C-phycocyanin beta subunit (PhcB). It does not attach chromophore to CpcA, ApcA or ApcB, the other phycobiliproteins. Cells are a yellow color, 40% reduction in phycocyanin and grow slowly. The C-phycocyanin beta subunit (PhcB) in this strain is missing the phycocyanobilin chromophore on position 153. Belongs to the CpcT/CpeT biliprotein lyase family.