Golang Round to Nearest 0.05

I am looking for a function to round to the nearest 0.05 in Golang . The end result of using the function must always be a factor of 0.05.

Here are some examples of outputs for the function I am looking for: (The function Round doesn’t exist yet, I am hoping it can be included in the answer)

Round(0.363636) // 0.35
Round(3.232)    // 3.25
Round(0.4888)   // 0.5

I have searched around for ages now and haven’t found any answers.