can i use google nest wifi as AP (not hardwired to existing router)

I have model number H2D, not the pro. I transistioned to unifi dream machine, so i'm not using the old SSID. What I'd like to do is instead of hooking up the Nest to my new router, I'd like to wirelessly us the ethernet port on my nest in another room by using it as An access point/mesh connected to the unifi. Can that be done? I have a thermostat and some other devices that need to be hardwired, and before I was connecting two nest routers together wirelessly, but now only want to use the one (connected wirelessly to the unifi dream machine downstairs).