Using i2c pins

Projects General Guidance
3

So even though those pins are made for i2c i can use this code?

#include <SoftwareSerial.h>

SoftwareSerial mySerial(4, 5); // RX, TX

void setup()  
{
  Serial.begin(9600);
}

void loop()
{
  if (mySerial.available())
    Serial.write(mySerial.read());
  if (Serial.available())
    mySerial.write(Serial.read());
}