for PICRUSt1 and qiime2

Hello Everyone!

I am trying to use PICRUSt1 for Qiime2(2018.4) generated table. I want to know if there is any fucntion similar to for qiime2 to suggest the relation between the identified OTUs and the predicted metagenome functions? Or is there any other way to do this kind of analysis?

P.S. I tried PICRUSt 2 but had multiple issues so went back to PICRUSt 1