What "particular function" is that? If it's "the part that influences neurological function", you don't have a complete argument. If you can't be specific about this, your argument falls apart, because almost everything we eat potentially "inhibits" (or accelerates) different areas of our gut flora.
I'm not trying to make a complete argument, I'm trying to raise a flag. This issue is not well-studied and has very large corporate sponsors who would like to keep selling Roundup-Ready™ crops. One particular measurable function is inhibition of the shikamate pathway in many different bacteria (the majority of the volume of your gut flora is affected).
Here's a decent paper that shows an adverse effect: https://pmc.ncbi.nlm.nih.gov/articles/PMC10330715/
I understand that this is the realm of crunchy weirdos, but thinking holistically doesn't mean you need to lobotomize yourself.
Here's another paper examining some brain effects of chronic gut inflammation, which could be reasonably inferred as a potential consequence of long-term glyphosate exposure: https://pmc.ncbi.nlm.nih.gov/articles/PMC10661239/