"Anafunga mlango?"

Translation: Does he close the door?

[BenMack8]

The tone of the audio implies this is a statement, not a question

[Katters]

Kufunga mlango = to close the door or to lock the door?
I have seen this problem before. But I think often, when people want to say 'close the door', they will say 'kurudisha mlango'.
How do Swahili speakers differentiate between closing and locking the door?
Either way, I would think both answers would be accepted here.