Why doesn’t the aperture change when I turn the ring on my Nikon lens?

I have a Nikon D5300, and I have a Nikon ED AF Nikkor 70-300mm 1:4-5.6 D lens. I cannot change the aperture manually in the lens — I can’t take photos when I turn the ring.

I want to buy a Rokinon 35mm T1.5 cine lens, which is all manual. If I can’t change the aperture manually on my camera, does that mean I won’t be able to use it at all?

I don’t want to buy it if i can’t use it, obviously. Can I use an all-manual cine lens on my D5300?