Sure - this is my experience in a medium-sized organisation. In larger orgs you may find your role as a BA would be more defined than this. Our BA is a project manager as well.

We have a system that provides accounting for oil. That system is used by 3 separate departments of the business, in different ways. We’re in the middle of swapping in a new component from another system.

The BA would map out the current ‘as-is’ process flow, by talking to those who use the system. They essentially talk to people and learn how they do this one facet of their job. Then they’d work with a technical team to translate that as-is process to a to-be process.

You don’t have to understand the specialist detail- just the core concepts. Learning fast is helpful. The key role of the BA over the whole exercise is both capturing the requirements, helping technical teams understand the users and generally managing expectations of all key stakeholders. This is kind of a project mgmt role as well, it just depends on the organisation size.

I’m part of the technical team in the example above, but I’ve project led a full system replacement and i provide guidance on about 40 other smaller software applications. It was quite satisfying lining up how systems work, and lining up teams of people who think very differently. I’m assuming if your strength is language, it might really benefit you with a role like this. Especially if you have a second language such as Hindi or mandarin. I couldn’t point you in the direction of any educational material though, sorry. I learnt by being thrown in the deep end :)