AUTHOR=Varaljay Vanessa A. , Charles Trevor C. , Daniel Rolf TITLE=Editorial: Functional Metagenomics for Enzyme Discovery JOURNAL=Frontiers in Microbiology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.956106 DOI=10.3389/fmicb.2022.956106 ISSN=1664-302X