Hi dwise1. My FAQ deals with the function of ERV components. It is just about the only thing that creationists have to fall back on, often attacking a straw-man of their own making, that "evolutionists" need all ERV genetic material to be "junk". This is a false and dishonest argument.
Follow the links in the FAQ.
Veritas: Endogenous RetroViruses - Frequently Asked Questions
6. ERVs do stuff. Doesn't that prove that they didn't originate from retroviruses, but were designed?
7. ERVs promote the transcription of host DNA. Doesn't this prove they are designed?
8. ERVs are essential in reproduction (syncytin and the formation of the placenta). How can this be?
9. Aren't the same ERV genetics in the same places in different species because they have to do the same job?
10. But how can you rule out design as an explanation?