How to deal with the link in the footer?

Question

Marketing

Hello!
Situation. On the website of the online store, in the footer there is a link to the company's website (corporate, further MI) through.
Question:
1. Do you think it is needed there?
2. Does it transfer weight to the second site?
3. If you leave it and close no follow?

I don't know what to do. Thank you for your comments.

Answer 1

Let it be, not superfluous