Can a company managing partner remove himself from the management position?

I am a partner in a restaurant with a 20% stake and the remaining divided equally between 2 other partners.

I have been made the managing partner to run the place. I would like to resign from the position as all responsibility has been put on me.

I am not being paid for my time and efforts as a managing partner. I don't have any signing authority with banks and because of my position, all legal onus has been put on me.

They are refusing to put money into the business and as it's a new business, the initial financial support is missing which is dragging down the business.

In this situation, I am feeling overwhelmed and distressed because I know without the influx required for marketing, the business will not grow to become sustainable. And without any compensation coming from the company, I cannot survive.

So I would like to remove myself from the managing partner position.

How can I do that?