Searching for Enyzme Commission number 5.3.1.16 (isomerase.) by Reannotation, by TIGRFam, by KEGG ortholog group, by SEED annotation, or by best hit in MetaCyc

Match by TIGRFam's EC number for 5.3.1.16

Gene ID	Gene Name	Description	Genome	Domain ID	Fitness
b2024	hisA	N-(5'-phospho-L-ribosyl-formimino)-5-amino-1-(5'- phosphoribosyl)-4-imidazolecarboxamide isomerase (VIMSS)	Escherichia coli BW25113	TIGR00007	strong

Or search for '5.3.1.16' in Escherichia coli BW25113 using Curated BLAST