Our professor does not make any effort to engage with us
Given that you've described the other lecturers at your uni as being engaged, I would contact one or two of them and tell them the situation. They would know your local context and have advice on what to do.

At a given university there will be somebody whose job it is to supervise the teaching of the faculty. At larger universities a given department will, for example, have a Associate Head of Undergrad Affairs (or some similar title) who would be the appropriate person to bring the issue up with. The lecturers will be able to point you to that person, or may be willing to talk to your lecturer directly about their teaching.